Which of the following is a characteristic feature of zoospores?

Options

A. They are motile
B. They are macroscopic
C. They are non-motile
D. They are sexual spores

Answer

To determine the characteristic feature of zoospores, we can analyze the options provided:

1. **Understanding Zoospores**:
- Zoospores are a type of spore that is primarily involved in asexual reproduction.
- They are produced by certain algae, fungi, and protozoans.

2. **Analyzing the Options**:
- **Option A: They are motile**: This option suggests that zoospores can move.
- **Option B: They are macroscopic**: This option implies that zoospores can be seen with the naked eye.
- **Option C: They are non-motile**: This option states that zoospores cannot move.
- **Option D: They are sexual spores**: This option indicates that zoospores are involved in sexual reproduction.

3. **Evaluating Each Option**:
- **Motility**: Zoospores are indeed motile because they possess flagella, which they use for movement.
- **Macroscopic Nature**: Zoospores are microscopic and cannot be seen without a microscope.
- **Non-motility**: This contradicts the known feature of zoospores being motile.
- **Sexual Spores**: Zoospores are asexual spores, not sexual.

4. **Conclusion**:
- The correct characteristic feature of zoospores is that **they are motile**.

Thus, the answer to the question is: **They are motile.**